CN115474159A

CN115474159A - Beam resource allocation method, beam switching method, device and storage medium

Info

Publication number: CN115474159A
Application number: CN202110649951.1A
Authority: CN
Inventors: 韩波; 缪德山; 孙韶辉; 康绍莉
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-12-13

Abstract

The invention provides a beam resource allocation method, a beam switching method, a device and a storage medium, wherein the beam resource allocation method comprises the following steps: the network side equipment allocates time-frequency resources of control beams to the terminal; and the network side equipment allocates the time-frequency resource of the service beam to the terminal. The invention can improve the management effect of the beam resources.

Description

Beam resource allocation method, beam switching method, device and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a beam resource allocation method, a beam switching method, a device, and a storage medium.

Background

Multiple beam coverage approaches are supported in some communication systems, for example: support for wide beam continuous coverage or support for dynamic spot beam (i.e., beam hopping) coverage. For dynamic spot beam coverage, the service time and coverage of a beam are dynamically variable, and the service time and coverage may affect beam access or data transmission of a terminal. Therefore, the problem of poor management effect exists in the beam resource management of the current network side equipment.

Disclosure of Invention

The embodiment of the invention provides a beam resource allocation method, a beam switching method, a device and a storage medium, which aim to solve the problem of poor management effect in beam resource management.

The embodiment of the invention provides a beam resource allocation method, which comprises the following steps:

the network side equipment allocates time-frequency resources of control beams to the terminal;

and the network side equipment allocates the time-frequency resource of the service beam to the terminal.

Optionally, the allocating, by the network side device, a time-frequency resource of a control beam to the terminal includes:

and the network side equipment sends a broadcast message to the terminal, wherein the broadcast message comprises the time-frequency resource of the control wave beam.

Optionally, the broadcast message further includes at least one of the following:

broadcasting satellite orbit altitude;

a Synchronization Signal Block (SSB) Synchronization grid of the service beam;

mapping relation between wave bits and lead codes (preambles);

wave position dwell time;

the number of wave bits;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time-frequency resources of the control beam;

wherein the random access time-frequency resource of the control beam comprises:

a time domain position, an uplink initial bandwidth part (BWP) of the control beam, and frequency resources allocated in the uplink initial BWP of the control beam;

optionally, the allocating, by the network side device, a time-frequency resource of a service beam to the terminal includes:

and the network side equipment sends a random access response to the terminal on the downlink initial BWP of the control beam, wherein the random access response is used for allocating the time-frequency resource of the service beam.

Optionally, the time-frequency resource of the service beam is used for the terminal to switch from the control beam to the initial BWP of the service beam; or

The time-frequency resource of the service beam is used for the terminal to switch from the control beam to the active BWP of the service beam.

Optionally, when the time-frequency resource of the service beam is used for the initial BWP for the terminal to switch from the control beam to the service beam, the time-frequency resource of the service beam includes:

the method comprises the steps that time domain positions, uplink initial BWP of service beams, frequency resources distributed in the uplink initial BWP of the service beams, and preamble and random access time-frequency resources which are exclusive to the service beams and used for non-competitive random access;

alternatively, the first and second electrodes may be,

in case that the time-frequency resource of the service beam is used for active BWP for the terminal to switch from the control beam to the service beam, the time-frequency resource of the service beam includes:

the uplink active BWP of the service beam, the frequency resource distributed in the uplink active BWP of the service beam, and the preamble and the random access time-frequency resource which are exclusive for the service beam and are used for non-competitive random access.

Optionally, the controlling time-frequency resources of the beam includes:

a time domain position, an uplink initial BWP of a steering beam, and a frequency resource allocated in the uplink initial BWP of the steering beam;

or alternatively

The method comprises the steps of time domain position, downlink initial BWP of a control beam and frequency resources distributed in the downlink initial BWP of the control beam; the allocating, by the network side device, a time-frequency resource of a service beam to the terminal includes:

the network side equipment sends a competition solution message and a Radio Resource Control (RRC) connection establishment message to the terminal through the Control wave beam, and the network side distributes time frequency resources of the service wave beam required by the RRC connection establishment completion signaling, and dedicated preamble and random access time frequency resources for non-competitive random access of the service wave beam through Downlink Control Information (DCI) signaling.

Optionally, the method further includes:

the network side equipment receives terminal capability information sent by the terminal;

wherein at least one of the time-frequency resource of the control beam and the time-frequency resource of the service beam corresponds to the terminal capability information.

Optionally, the method further includes:

and the network side equipment receives the RRC connection request and the terminal capability information sent by the terminal on the time-frequency resource of the control beam.

Optionally, the method further includes:

and under the condition that the terminal fails to switch from the control beam to the service beam, the network side equipment receives non-competitive random access initiated by the terminal at the position of the random access resource of the service beam.

Optionally, the service beam is configured with at least one of the following:

the method comprises the steps of ascending initial BWP, descending initial BWP, ascending activated BWP and descending activated BWP;

wherein each BWP is configured with a measurement signal.

Optionally, the method further includes:

the network side equipment informs the terminal to measure on the designated BWP;

the network side equipment receives the measurement quantity fed back by the terminal;

and the network side equipment determines whether to perform BWP handover or cell handover according to the measurement quantity.

Optionally, the measurement signal includes at least one of:

SSBs and Channel State Information Reference signals (CSI-RS).

Optionally, the service beam time-divisionally services a plurality of wave bits, and the uplink active BWP and the downlink active BWP configured at each wave bit by the service beam are configured based on at least one of the following:

terminal capabilities and traffic requirements of the terminal in each wave position.

Optionally, the method further includes:

under the condition that the beam service of the wave position where the terminal is located is about to fail, the network side device requests a service beam resource from a target network side device and notifies the terminal of at least one of the downlink initial BWP and the uplink initial BWP of the target network side device.

The embodiment of the invention provides a beam switching method, which comprises the following steps:

a terminal acquires time-frequency resources of control beams allocated by network side equipment;

the terminal acquires time-frequency resources of service beams distributed by the network side equipment;

the terminal switches from the control beam to the traffic beam.

Optionally, the obtaining, by the terminal, a time-frequency resource of a control beam allocated by a network side device includes:

and the terminal receives a broadcast message sent by the network side equipment, wherein the broadcast message comprises the time-frequency resource of the control wave beam.

broadcasting the satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between the wave position and the preamble;

wave position dwell time;

the wave number;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time-frequency resources of the control beam;

a time domain position, an upstream initial bandwidth portion BWP of the steering beam, and frequency resources allocated in the upstream initial BWP of the steering beam;

optionally, the terminal sends a preamble on the random access time-frequency resource;

or alternatively

And the terminal reports the terminal capability while sending the preamble on the random access time-frequency resource.

Optionally, the acquiring, by the terminal, a time-frequency resource of a service beam allocated by the network side device includes:

and the terminal receives a random access response sent by the network side equipment on the downlink initial BWP of the control beam, wherein the random access response is used for allocating time-frequency resources of the service beam.

Optionally, the switching, by the terminal, from the control beam to the service beam includes:

the terminal sends an RRC connection request to the network side equipment from the initial BWP of the control beam switching to the service beam; or

And the terminal sends an RRC connection request to the network side equipment from the active BWP switched from the control beam to the service beam.

Optionally, in a case that the terminal switches from the control beam to the initial BWP of the service beam, the time-frequency resources of the service beam include:

the method comprises the steps that time domain position, uplink initial BWP of a service beam, frequency resources distributed in the uplink initial BWP of the service beam, and dedicated preamble and random access time-frequency resources of the service beam for non-competitive random access are adopted, wherein when a terminal recovers from control beam to service beam switching failure, the terminal uses the dedicated preamble of the service beam to initiate the non-competitive random access;

alternatively, the first and second liquid crystal display panels may be,

in case that the terminal switches from the control beam to active BWP of the service beam, the time-frequency resources of the service beam include:

the method comprises the steps of time domain position, uplink activation BWP of service beams, frequency resources distributed in the uplink activation BWP of the service beams, and dedicated preamble and random access time-frequency resources for non-competitive random access of the service beams, wherein when the terminal recovers from the failure of switching from control beams to the service beams, the terminal initiates the non-competitive random access by using the dedicated preamble of the service beams.

Optionally, the controlling the time-frequency resources of the beam includes:

or

The method comprises the steps of time domain position, downlink initial BWP of a control beam and frequency resources distributed in the downlink initial BWP of the control beam;

the terminal acquires the time-frequency resource of the service beam distributed by the network side equipment, and the time-frequency resource comprises the following steps:

the terminal receives a competition resolving message and an RRC connection establishing message which are sent by the network side equipment through the control wave beam, acquires a time frequency resource of the service wave beam required by the network side equipment for establishing and completing signaling through the RRC connection allocated by DCI signaling, and a preamble and a random access time frequency resource which are exclusive to the service wave beam and are used for non-competition random access, wherein when the terminal is recovered from the control wave beam to the service wave beam in a switching failure mode, the terminal uses the preamble exclusive to the service wave beam to initiate the non-competition random access;

the terminal switching from the control beam to the service beam comprises:

and the terminal is switched from the control beam to the service beam for RRC connection establishment.

Optionally, the method further includes:

the terminal sends terminal capability information to the network side equipment;

Optionally, the method further includes:

and the terminal sends an RRC connection request and terminal capability information to the network side equipment on the time-frequency resource of the control beam.

Optionally, the method further includes:

under the condition that the terminal fails to switch from the control beam to the service beam, the terminal initiates non-competitive random access to the network side equipment by using a preamble exclusive to the service beam at the position of the random access resource of the service beam; or

And under the condition that the terminal fails to switch from the control beam to the service beam, the terminal detects a Synchronization Signal Block (SSB) of the service beam at the position of an SSB synchronization grid, and initiates initial access to the network side equipment in the service beam based on the synchronization signal block and random access resources, wherein the position of the SSB synchronization grid is configured to the terminal by the network side equipment.

Optionally, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

Optionally, the method further includes:

the terminal receives a notification sent by the network side device, wherein the notification is used for notifying the terminal to measure on a specified BWP;

and the terminal feeds back the measured quantity measured by the terminal on the specified BWP to the network side equipment.

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

An embodiment of the present invention further provides a network side device, including: a memory, a transceiver, and a processor, wherein:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following:

allocating time-frequency resources of control beams to the terminal;

and allocating time-frequency resources of service beams to the terminal.

Optionally, the allocating time-frequency resources of service beams to the terminal includes:

and sending a random access response to the terminal on the downlink initial BWP of the control beam, wherein the random access response is used for allocating the time-frequency resources of the service beam.

Optionally, the time-frequency resource of the service beam is used for the terminal to switch from the control beam to the initial BWP of the service beam; or alternatively

Optionally, the controlling time-frequency resources of the beam includes:

a time domain position, an uplink initial BWP of a steered beam, and frequency resources allocated in the uplink initial BWP of the steered beam;

or alternatively

A time domain position, a downlink initial BWP of a control beam, and a frequency resource allocated in the downlink initial BWP of the control beam;

the allocating time-frequency resources of service beams to the terminal includes:

and sending a competition solution message and an RRC connection establishment message to the terminal through the control beam, and allocating time-frequency resources of the service beam required by the RRC connection establishment completion signaling, and preamble and random access time-frequency resources which are exclusive for the service beam and are used for non-competitive random access by the network side through DCI signaling.

An embodiment of the present invention further provides a terminal, including: a memory, a transceiver, and a processor, wherein:

a memory for storing a computer program; a transceiver for transceiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations:

acquiring time-frequency resources of control beams allocated by network side equipment;

acquiring time-frequency resources of service beams distributed by the network side equipment;

switching from the control beam to the traffic beam.

Optionally, the obtaining the time-frequency resource of the service beam allocated by the network side device includes:

and receiving a random access response sent by the network side equipment on the downlink initial BWP of the control beam, wherein the random access response is used for allocating the time-frequency resource of the service beam.

Optionally, the switching from the control beam to the service beam includes:

sending an RRC connection request to the network side device from the initial BWP switched from the control beam to the service beam; or alternatively

And sending an RRC connection request to the network side equipment by the active BWP switched from the control beam to the service beam.

Optionally, the controlling time-frequency resources of the beam includes:

or

the obtaining of the time-frequency resource of the service beam allocated by the network side device includes:

receiving a contention resolution message and an RRC connection establishment message sent by the network side equipment through the control beam, and acquiring a time frequency resource of the service beam required by the RRC connection establishment completion signaling distributed by the network side equipment through DCI signaling, and a preamble and a random access time frequency resource which are exclusive to the service beam and are used for non-contention random access, wherein when the terminal is recovered from the control beam to the service beam in a switching failure, the terminal uses the preamble exclusive to the service beam to initiate non-contention random access;

the switching from the control beam to the traffic beam comprises:

switching from the control beam to the service beam for RRC connection establishment.

An embodiment of the present invention further provides a network side device, including:

a first allocation unit, configured to allocate a time-frequency resource of a control beam to a terminal;

and the second allocation unit is used for allocating the time-frequency resources of the service beams to the terminal.

An embodiment of the present invention further provides a terminal, including:

a first obtaining unit, configured to obtain, by a terminal, a time-frequency resource of a control beam allocated by a network side device;

a second obtaining unit, configured to obtain a time-frequency resource of a service beam allocated by the network side device;

a switching unit for switching from the control beam to the service beam.

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the beam resource allocation method provided in the embodiment of the present invention, or the computer program is configured to enable the processor to execute the beam switching method provided in the embodiment of the present invention.

In the embodiment of the invention, network side equipment allocates time-frequency resources of control beams to a terminal; and the network side equipment allocates the time-frequency resource of the service beam to the terminal. Therefore, the time-frequency resource of the control wave beam and the time-frequency resource of the service wave beam are distributed to the terminal, so that the terminal is supported to be switched from the control wave beam to the service wave beam, and the management effect of the wave beam resources is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture in which the present invention may be implemented;

fig. 2a is a schematic diagram of a beam polling coverage provided by an embodiment of the present invention;

fig. 2b is a diagram illustrating another beam polling coverage provided by an embodiment of the present invention;

fig. 3 is a flowchart of a beam resource allocation method according to an embodiment of the present invention;

fig. 4 is a flowchart of a method for allocating beam resources according to an embodiment of the present invention;

fig. 5 is a structural diagram of a network side device according to an embodiment of the present invention;

fig. 6 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a structural diagram of another network-side device according to an embodiment of the present invention;

fig. 8 is a structural diagram of another terminal according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The term "plurality" in the embodiments of the present invention means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The method and the equipment are based on the same application concept, and because the principles of solving the problems of the method and the equipment are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not described again.

The technical scheme provided by the embodiment of the invention can be suitable for various systems, particularly 6G systems. For example, the applicable system may be a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, a LTE frequency Division duplex (frequency Division duplex, FDD) system, a LTE Time Division Duplex (TDD) system, a long term evolution (long term evolution, LTE-a) system, a universal mobile system (universal mobile telecommunications system, UMTS), a universal mobile Access (microwave Access, UMTS), a New Radio Access (NR 5, new Radio Access (NR) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5 GS), and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a network architecture to which the present invention is applicable, and as shown in fig. 1, includes a terminal 11 and a network side device 12.

The terminal according to the embodiment of the present invention may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, e.g., a portable, sleeve-type, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange language and/or data with the Radio Access Network. Examples of the Wireless Communication devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and Redcap terminals. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present invention.

The network-side device according to the embodiment of the present invention may be a satellite, and specifically may be a satellite-borne base station (e.g., a regenerative satellite), and of course, in some embodiments, the network-side device may also be a satellite + a base station (e.g., a transparent relay satellite), that is, the network-side device has a network function of a satellite and a base station at the same time. The base station may include a plurality of cells serving the terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames and Internet Protocol (IP) packets with one another as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communications network.

The network side device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present invention may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a Base Station in a 5G Base Station (gNB) or a 6G Base Station in a 5G network architecture (next generation System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (pico), and the like, and is not limited by the embodiments of the present invention. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The network side device and the terminal may each use one or more antennas to perform Multiple Input Multiple Output (MIMO) transmission, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). According to the form and the number of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, and can also be diversity transmission, precoding transmission, beamforming transmission, etc.

The network side equipment can simultaneously generate a control beam and a service beam, and taking the network side equipment as a regeneration satellite as an example, the control beam can be covered by beam hopping polling, and the service beam covers different wave positions in a time-sharing manner according to the service requirements of users. A service area that can be covered by one beam is called as one wave bit, as shown in fig. 2a and fig. 2b, a network side device may poll to cover 20 wave bits, of course, 20 is merely an example, and the number of wave bits is not limited. In some embodiments, in order to increase the coverage, the network side device uses a beam-hopping polling coverage manner for an unknown terminal area, and uses a fixed-point coverage manner for terminals in a known location area. In fig. 2a, the control beam of the network-side device scans in a polling coverage manner, and in fig. 2b, the service beam of the network-side device covers different wave positions in a time-sharing manner in order to meet the service requirement of the user in a given area. In the embodiment of the invention, the service beam of the network side equipment has the function of controlling the beam, such as the service beam supports terminal access, and particularly can support initial access and random access.

In some embodiments, two beam design schemes can be considered according to actual requirements, one is to adopt an independent control beam, use narrow-band transmission and cover a large area based on a polling scanning mode, and the other is to provide data information transmission service for a terminal by using a service beam, and meanwhile, signaling information can be sent based on a pre-acquired terminal position to support terminal access; one service beam may serve multiple wave bits as needed.

In some embodiments, the control beam may be a dedicated control beam, and the basic technical features of the control beam include polling scanning, covering an unknown terminal area, completing initial terminal access, and scheduling an idle service beam for data transmission if there is a data transmission requirement.

In some embodiments, the service beam also has the function of controlling the beam, and when the network side predicts the location information of the terminal, the service beam can be used to directly serve the terminal. In addition, the terminal may directly initiate an access request based on the broadcast message of the service beam through information transmitted by the broadcast message. Therefore, the service beam can be used for rapidly accessing the service aiming at the specific terminal, thereby avoiding blind control beam scanning, saving signaling power consumption, but needing prior information of the terminal position.

It should be noted that, in the embodiment of the present invention, a network side device may have multiple control beams and multiple service beams at the same time, where fig. 2a and fig. 2b are illustrated by using one beam as an example.

Referring to fig. 3, fig. 3 is a flowchart of a beam resource allocation method according to an embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:

301. the network side equipment allocates time-frequency resources of control beams to the terminal;

302. and the network side equipment allocates the time-frequency resource of the service beam to the terminal.

The time-frequency resource of the control beam may be a time-frequency resource for random access of the terminal, and the time-frequency resource of the service beam may be a time-frequency resource for switching the terminal from the control beam to the service beam.

The time-frequency resource for the network side device to allocate the control beam to the terminal may be the time-frequency resource for the control beam to be allocated to the terminal through the control beam or the service beam, and may be the time-frequency resource for the control beam to be allocated to the terminal through a broadcast message or a dedicated message.

The time-frequency resource for the network side device to allocate the service beam to the terminal may be the time-frequency resource for the network side device to allocate the service beam to the terminal through the control beam or the service beam, and may be dedicated message transmission.

It should be noted that, the execution order of step 301 and step 302 may not be limited, for example: as shown in fig. 3, step 301 is performed before step 302, or in some embodiments, both steps may be performed simultaneously. And step 302 may be executed after a certain time interval after step 301 is executed, that is, step 301 may be executed in advance.

In the embodiment of the invention, the time-frequency resource of the control wave beam and the time-frequency resource of the service wave beam can be distributed to the terminal through the steps, so that the terminal is supported to be switched from the control wave beam to the service wave beam, and the management effect of the wave beam resources is improved.

In the embodiment of the present invention, the terminal may switch from the control beam to the service beam in the random access process, for example: switching from an RRC connection request (MSG 3 in random access procedure) to a traffic beam, or switching from a control beam to a traffic beam upon completion of RRC connection establishment. For example: based on the resources allocated by the network side, the MSG3 of the terminal switches from the initial BWP of the control beam to the initial BWP of the service beam or activates BWP in the random access process, or the terminal switches from the initial BWP of the control beam to the activated BWP of the service beam when the RRC connection setup is completed, which can meet the dynamic service arrival based on the terminal, flexibly configure the beam, and implement efficient scheduling and management of the beam.

As an optional implementation manner, the allocating, by the network side device, a time-frequency resource of a control beam to a terminal includes:

The broadcast message may be transmitted on a control beam or a service beam.

For example: the network side configures a downlink initial BWP and an uplink initial BWP for each beam, where the downlink initial BWP can meet the bandwidth requirements of terminals with different capability levels, and the size of the uplink initial BWP can ensure the uplink transmission requirement in the initial access process, and can ensure that all terminals can meet the requirement at the same time.

The broadcast message may be transmitted on an initial downlink BWP, and the broadcast message may include main System Information, control resource set (core) #0, and System Information Block (SIB) 1 Information.

broadcasting satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between wave position and preamble;

wave position dwell time;

the wave number;

a scan period of the control beam.

The mapping relationship between the wave bits and the preamble may represent a dedicated preamble sequence of each wave bit, such as a dedicated preamble sequence of a control beam, such as a dedicated preamble sequence of a service beam. For example: the mapping relationship between the wave position and the preamble comprises a mapping relationship between the control wave beam and the preamble and a mapping relationship between the service wave beam and the preamble. In the embodiment of the present invention, the preamble used for the beam switching failure recovery may be a preamble dedicated to the terminal user. It should be noted that, in some embodiments, the mapping relationship between the bits and the preamble may not distinguish between the control beam and the service beam, for example: the control beam and the traffic beam may use the same preamble sequence.

Through the mapping relationship, after detecting the preamble sequence sent by the terminal, the network side device can know the wave position of the terminal, and then issue a Timing Advance Command (TAC) and allocate time-frequency resources of an RRC connection request (MSG 3) for the terminal.

In some embodiments, the broadcast message may include a random access time-frequency resource, such as at least one of a random access time-frequency resource of a control beam and a random access time-frequency resource of a service beam.

As an optional implementation manner, the time-frequency resources of the control beam include:

random access time-frequency resources of the control beam;

a time-domain position, an uplink initial BWP for the steered beam, and frequency resources allocated in the uplink initial BWP for the steered beam.

Wherein, the time domain position is a time domain initial position.

The random access time-frequency resource of the control beam can enable the terminal to initiate random access at the random access time-frequency resource, such as sending a preamble sequence.

As an optional implementation manner, the allocating, by the network side device, time-frequency resources of a service beam to the terminal includes:

and the network side equipment sends a random access response (MSG 2) to the terminal on the downlink initial BWP of the control beam, wherein the random access response is used for allocating time-frequency resources of the service beam.

In this embodiment, the method further includes that the network side device receives a preamble sequence (MSG 1) sent by the terminal on the time-frequency resource of the control beam.

In the embodiment, the time-frequency resource of the service beam can be allocated to the terminal through the random access response, so that the terminal is supported to be switched to the service beam from the MSG3 in the random access process.

The time-frequency resource of the service beam can support the terminal to switch from MSG3 in the random access process to the service beam.

time domain position, uplink initial BWP of the service beam, frequency resources distributed in the uplink initial BWP of the service beam, and preamble and random access time-frequency resources which are exclusive for the service beam and are used for non-competitive random access;

alternatively, the first and second liquid crystal display panels may be,

the uplink activation BWP of the service beam, the frequency resource distributed in the uplink activation BWP of the service beam, and the preamble and the random access time-frequency resource which are exclusive for the service beam and are used for non-competitive random access.

The time domain position may be a time domain starting position, and the time-frequency resource of the service beam may support the terminal to switch from the control beam to the uplink initial BWP of the service beam, or to switch to the uplink active BWP of the service beam. For example: the terminal is switched from the control beam initial BWP to the service beam initial BWP at MSG 3; alternatively, the terminal switches from control beam initial BWP to traffic beam active BWP in MSG 3.

When the terminal recovers from the failure of switching the control beam to the service beam, the terminal may initiate non-contention random access using the preamble dedicated to the service beam.

The preamble and the random access time-frequency resource dedicated to the service beam and used for non-contention random access include time-frequency resources required for transmitting the preamble by the non-contention random access, and after receiving the PRACH, the network side transmits a positive response message on the service beam dedicated CORESET, and the terminal monitors the response message on the service beam dedicated CORESET.

As an optional implementation, the method further comprises:

The terminal capability information may be sent when the terminal sends the preamble. The terminal capability information may include: terminal capability level, such as information including bandwidth capability, speed, etc.

And the network side equipment receives the terminal capability information and allocates the time-frequency resource of the control beam and the time-frequency resource of the service beam matched with the terminal capability information for the terminal.

In some embodiments, the network-side device may notify the terminal of the initial BWP from the control beam to the traffic beam or activate the handover of BWP according to the terminal capability information.

The following two embodiments are respectively used to illustrate the switching of the terminal from the initial BWP of the control beam to the service beam:

example 1:

in this embodiment, mainly describing the switching from the initial BWP of the control beam to the initial BWP of the service beam in the MSG3, the specific steps may be as follows:

the method comprises the following steps that network side equipment broadcasts satellite orbit height through SIB1, broadcasts usable random access time frequency resources and a preamble sequence exclusive to each wave bit terminal, broadcasts the residence time and the wave bit number of the wave bit of the notification terminal, or broadcasts the notification terminal to control a wave beam scanning period, and establishes a mapping relation between the wave bit and the preamble of the random access sequence;

and at the terminal which controls the beam to finish the downlink initial access, if a data transmission request exists, the network side equipment schedules the service beam to serve the service beam. The terminal repeatedly sends a preamble sequence (MSG 1) for multiple times in advance by using a Random Access sequence preamble dedicated to a wave position according to a control beam scanning period, an uplink initial BWP and a Random Access resource, the terminal can simultaneously report the capability when sending the preamble at the MSG1, after detecting the preamble sequence, network side equipment determines the wave position of the terminal, and after sending the preamble sequence, the terminal delays a fixed time interval to receive a Random Access Response (RAR), namely MSG2. The fixed time interval is related to a beam scanning period, and a random access response carries a timing advance command word (TAC) and time-frequency resources of the allocated service beam, wherein the time-frequency resources comprise a time domain initial position of a service beam service terminal, an uplink initial BWP (bwpeer-to-peer) and a downlink initial BWP, and frequency resources allocated in the uplink initial BWP and the downlink initial BWP; and the terminal sends an RRC connection request (MSG 3) in the designated service beam time-frequency resource according to the TAC command so as to complete the switching from the initial BWP of the control beam to the initial BWP of the service beam.

Example 2:

this embodiment mainly describes the switching from the initial BWP of the control beam to the active BWP of the traffic beam in MSG3, which may specifically be as follows:

the method comprises the following steps that network side equipment broadcasts satellite orbit height through SIB1, broadcasts available random access time-frequency resources and a preamble sequence exclusive to each wave bit terminal, broadcasts residence time and wave bit number of the wave bit of a notification terminal, or broadcasts the notification terminal to control a wave beam scanning period, and establishes a mapping relation between the wave bit and the random access sequence preamble;

and at the terminal which controls the beam to finish the downlink initial access, if a data transmission request exists, the network side equipment schedules the service beam to serve the service beam. The terminal repeatedly sends a preamble sequence (MSG 1) for multiple times in advance by using a random access sequence preamble dedicated to a wave position according to a control beam scanning period, an initial uplink BWP and a random access resource, the terminal sends the preamble at the MSG1 and reports the capability at the same time, after detecting the preamble sequence, a network side determines the wave position of the terminal, and after sending the preamble sequence, the terminal delays a fixed time interval to receive a random access response RAR (MSG 2). The fixed time interval is related to a beam scanning period, and the random access response carries a timing advance command word (TAC) and time-frequency resources of the allocated service beam, wherein the time-frequency resources comprise a time domain initial position of a service beam service terminal, an uplink activation BWP and a downlink activation BWP which are exclusive to the terminal, and frequency resources allocated in the uplink activation BWP and the downlink activation BWP; the terminal sends an RRC connection request (MSG 3) in the time-frequency resource of the appointed service beam active BWP according to the TAC command so as to complete the active BWP switching of switching the initial BWP of the control beam to the service beam.

As an optional implementation manner, the controlling time-frequency resources of the beam includes:

or

the allocating, by the network side device, a time-frequency resource of a service beam to the terminal includes:

the network side equipment sends a competition solution message and an RRC connection establishment message to the terminal through the control wave beam, and the network side distributes time-frequency resources of the service wave beam required by the RRC connection establishment completion signaling, and preamble and random access time-frequency resources which are exclusive to the service wave beam and used for non-competitive random access.

The time-frequency resource of the control beam can be used for the terminal to initiate initial access.

In this embodiment, the time-frequency resource of the service beam allocated to the terminal is the time-frequency resource of the service beam required by the RRC connection setup completion signaling, so that the terminal can switch from the control beam initial BWP to the service beam when the RRC connection is setup.

The time-frequency resource of the control beam may be used for the terminal to initiate random access, for example: the time-frequency resources of the control beam include: and controlling random access resources of the wave beam, wherein the random access resources comprise a random access preamble, a time domain position of random access, a frequency domain initial position of random access and a frequency resource block of random access.

The time-frequency resource of the control beam may be used for the terminal to receive a random access response, for example: the time-frequency resource of the control beam may include: and controlling the wave beam to send downlink time-frequency resources of the random access response.

The time-frequency resource of the control beam may be used to send an RRC connection request, for example: the time-frequency resources of the control beam may include: a control beam time-frequency resource for transmitting an RRC connection request, wherein the control beam time-frequency resource for transmitting the RRC connection request comprises: a time domain position, an uplink initial BWP of a steering beam, and frequency resources allocated in the uplink initial BWP of the steering beam.

It should be noted that, in the embodiment of the present invention, the time-frequency resource of the control beam may be allocated to the terminal through one or more messages.

Optionally, the time-frequency resource of the service beam includes:

a service beam time-frequency resource for transmitting an RRC connection request, wherein the service beam time-frequency resource for transmitting the RRC connection request includes: the method comprises the steps of time domain position, uplink activation BWP of a service beam and frequency resources distributed in the uplink activation BWP of the service beam;

or alternatively

Random access resources specially distributed for service beams comprise a random access preamble, a time domain position of random access, a frequency domain starting position of random access and a frequency resource block of random access.

In this embodiment, the terminal may send the RRC connection request or the random access preamble on the service beam.

Optionally, the method further includes:

The terminal capability information may be used for the network side device to allocate resources to the terminal, for example, to allocate time-frequency resources of a service beam matched with the terminal capability information to the terminal.

The following illustrates an embodiment of the foregoing support terminal switching from the initial BWP of the control beam to the service beam when the RRC connection is established, by an embodiment:

example 3:

this embodiment mainly describes the switching from the initial BWP of the control beam to the active BWP of the service beam at RRC connection setup, which may specifically be as follows:

the method comprises the following steps that a network side broadcasts satellite orbit height through SIB1, broadcasts usable random access time frequency resources and a preamble sequence exclusive to each wave bit terminal, broadcasts and informs the terminal of wave bit residence time and wave bit number, or broadcasts and informs the terminal to control a wave beam scanning period, and establishes a mapping relation between wave bits and random access sequence preambles;

and at the terminal which controls the beam to finish the downlink initial access, if a data transmission request exists, the network side equipment schedules the service beam to serve the service beam. The terminal repeatedly sends a preamble sequence (MSG 1) for a plurality of times in advance by using a random access sequence preamble dedicated to a wave position according to a control wave beam scanning period, an uplink initial BWP and a random access resource, the wave position of the terminal is determined after the network side detects the preamble sequence, and the terminal delays a fixed time interval to receive a random access response RAR (MSG 2) after sending the preamble sequence. The fixed time interval is related to a beam scanning period, a timing advance command word (TAC) is carried in a random access response, and a time frequency resource of an RRC connection request (MSG 3) is allocated, so that the terminal sends the RRC connection request (MSG 3) in the time frequency resource of a specified service beam or the time frequency resource of a control beam according to the TAC command, and reports the capability level of the terminal, including information such as bandwidth capability and speed. The network side equipment issues a competition resolving message and an RRC connection establishment message through (MSG 4), allocates time frequency resources of the service beam required by the RRC connection establishment completion signaling for the terminal through DCI signaling, and the time frequency resources comprise: the time domain starting position of the service beam service terminal, the exclusive downlink active BWP and uplink active BWP of the terminal and the frequency resources distributed in the downlink active BWP and uplink active BWP. The terminal is switched from the initial BWP of the control beam to the active BWP of the traffic beam at RRC connection setup.

As an optional implementation, the method further comprises:

The random access resource of the service beam may be that when the network side device notifies the terminal of preparing to switch to BWP of the service beam, the network side device notifies the terminal of the available random access resource of the service beam, or may further notify the location information of the SSB synchronization grid of the service beam, so that the terminal detects the SSB at the location of the SSB synchronization grid, and initiates access based on the SSB and the random access resource of the service beam.

In this embodiment, the terminal is supported to initiate access quickly through the random access resource of the service beam.

As an optional embodiment, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

The active BWP may be a user-specific BWP, and the active BWP may also be an initial BWP.

The network side device may configure different BWPs for different service beams. For example: in order to meet different terminal capability requirements, the network side device configures different BWPs for the service beam with the initial access function.

The network side device is further configured with a measurement signal for each BWP, for example: the measurement signal includes at least one of: SSB and CSI-RS.

The network side device may configure the SSB in a fixed pattern on the initial downlink BWP for downlink initial access, and this SSB may also be used for measurement. In addition, SSB or CSI-RS is configured on each downlink activated BWP as required for measurement, the network indicates the terminal to report the measurement quantity of the specified BWP periodically through a high-level signaling, and the network side determines whether to carry out BWP switching according to the measurement result reported by the terminal. Specific examples may be as follows: the method further comprises the following steps:

The measurement may be Radio Resource Management (RRM) measurement.

The decision of whether to perform BWP handover or cell handover can be realized according to actual conditions by the measurement quantity so as to improve the communication performance.

The above measurement embodiment is illustrated below by way of an example:

example 4:

this embodiment mainly describes configuring a dedicated measurement reference signal for each BWP, and specifically may be as follows:

in order to meet different terminal capability requirements, the network side device configures different BWPs for service beams with an initial access function, and besides downlink initial BWPs and uplink initial BWPs, all service beams are also configured with multiple downlink active BWPs and uplink active BWPs; and configures a measurement signal for each BWP, and the network side device configures a synchronization block SSB on the initial downlink BWP according to a fixed pattern for downlink initial access, and this SSB can also be used for measurement. In addition, SSB or CSI-RS is configured on each downlink activated BWP as required for measurement, the network indicates the terminal to report the measurement quantity of the specified BWP periodically through a high-level signaling, and the network side determines whether to carry out BWP switching according to the measurement result reported by the terminal. According to the requirement of the service volume of each wave position terminal, one service wave beam can serve the terminal in two different modes: one way is as follows: one business wave beam always serves a terminal of a wave position, and the wave position cannot be served in a staring mode until the pitch angle of the business wave beam is too small; in another mode: the terminal service volume of one wave position is small, and in order to improve the resource utilization rate of the service wave beam, one service wave beam can serve a plurality of wave positions in a time-sharing manner; configuring different downlink active BWP and uplink active BWP for service beams of different wave positions according to different terminal capabilities and service requirements of different wave positions, and determining whether to perform BWP switching according to the quality of BWP signals.

As an optional embodiment, the service beam time-divisionally serves multiple wave bits, and the uplink active BWP and the downlink active BWP configured for each wave bit by the service beam are configured based on at least one of the following:

In this embodiment, the terminal capability and the service requirement of the terminal in the wave position can be configured according to the terminal capability and the service requirement of the terminal in the wave position, so that the uplink active BWP and the downlink active BWP configured for each wave position are matched with the terminal capability, and the service requirement of the terminal is met, thereby improving the communication performance.

As an optional implementation, the method further comprises:

The wave position may be about to fail to be served by the wave beam, and the position of the network-side device may not be covered by the wave position.

According to the embodiment, the beam service of the wave position where the terminal is located can be switched to the downlink initial BWP and the uplink initial BWP of the target network side device in time when the beam service is about to fail, so that the service transmission of the terminal is ensured. For example: the source satellite requests a new service beam resource to the destination satellite through the inter-satellite link, the source satellite notifies the terminal of the source satellite service of the downlink initial BWP and the uplink initial BWP configured by the destination satellite, the network side notifies the terminal in the source beam to prepare for the BWP-based group switching through the group DCI information or through the RRC reconfiguration signaling, and the uplink BWP and the downlink BWP can be switched simultaneously.

In the embodiment of the present invention, the service beam may serve a single wave bit or multiple wave bits, and each wave bit may use the same BWP or different BWPs according to the service requirement of the terminal in each wave bit.

Referring to fig. 4, fig. 4 is a flowchart of a beam switching method according to an embodiment of the present invention, as shown in fig. 4, including the following steps:

401. a terminal acquires time-frequency resources of control beams allocated by network side equipment;

402. the terminal acquires time-frequency resources of service beams distributed by the network side equipment;

403. the terminal switches from the control beam to the traffic beam.

The switching of the terminal from the control beam to the service beam may be switching from a time-frequency resource of the control beam to a time-frequency resource of the service beam.

The terminal may complete downlink initial access at the downlink initial BWP of the control beam or the service beam, and read the broadcast message.

broadcasting satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between the wave bit and the preamble;

wave position dwell time;

the number of wave bits;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time frequency resources of the control beam;

or

And the terminal reports the terminal capability while sending the preamble on the random access time frequency resource.

and the terminal receives a random access response sent by the network side equipment on the downlink initial BWP of the control beam, wherein the random access response is used for allocating the time-frequency resource of the service beam.

the terminal sends an RRC connection request to the network side equipment from the initial BWP of the control beam switching to the service beam; or alternatively

alternatively, the first and second electrodes may be,

Optionally, when the terminal fails to recover from the switching from the control beam to the service beam, the terminal uses the preamble dedicated to the service beam to initiate the non-contention random access

Optionally, the controlling the time-frequency resources of the beam includes:

or alternatively

the terminal acquires the time-frequency resource of the service beam distributed by the network side equipment, and the method comprises the following steps:

the terminal receives a contention resolution message and an RRC connection establishment message sent by the network side equipment through the control beam, acquires a time-frequency resource of the service beam required by the RRC connection establishment completion signaling distributed by the network side equipment through DCI signaling, and a preamble and a random access time-frequency resource which are exclusive to the service beam and used for non-contention random access;

the terminal switching from the control beam to the service beam comprises:

Optionally, when the terminal recovers from the control beam to the service beam due to a handover failure, the terminal initiates non-contention random access by using a preamble dedicated to the service beam.

Optionally, the method further includes:

and the terminal sends an RRC connection request and terminal capability information to the network side equipment on the time-frequency resource of the control wave beam.

Optionally, the method further includes:

under the condition that the terminal fails to switch from the control beam to the service beam, the terminal initiates non-competitive random access to the network side equipment by using a preamble exclusive to the service beam at the position of the random access resource of the service beam; or alternatively

Optionally, the service beam is configured with at least one of the following:

uplink initial BWP, downlink initial BWP, uplink activated BWP and downlink activated BWP;

wherein each BWP is configured with a measurement signal.

Optionally, the method further includes:

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

It should be noted that, as an implementation manner of the terminal corresponding to the embodiment shown in fig. 3, a specific implementation manner of the embodiment may refer to the relevant description of the embodiment shown in fig. 3, and in order to avoid repeated description, the embodiment is not described again, and the same beneficial effects may also be achieved.

Referring to fig. 5, fig. 5 is a block diagram of a network device according to an embodiment of the present invention, as shown in fig. 5, including a memory 520, a transceiver 500, and a processor 510:

a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor 510; a processor 510 for reading the computer program in the memory 520 and performing the following operations:

allocating time-frequency resources of control beams to the terminal;

and allocating time-frequency resources of service beams to the terminal.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 510, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 500 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 530 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

Alternatively, the processor 510 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor is used for executing any method provided by the embodiment of the invention according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

Optionally, the allocating time-frequency resources of control beams to the terminal includes:

and sending a broadcast message to the terminal, wherein the broadcast message comprises the time-frequency resource of the control wave beam.

broadcasting satellite orbit altitude;

the location information of the synchronization signal block SSB synchronization grid of the service beam;

mapping relation between the wave bit and the preamble;

wave position dwell time;

the number of wave bits;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time-frequency resources of the control beam;

a time domain position, an upstream initial bandwidth portion BWP of the steering beam, and frequency resources allocated in the upstream initial BWP of the steering beam.

alternatively, the first and second liquid crystal display panels may be,

Optionally, the controlling the time-frequency resources of the beam includes:

or

and sending a competition solution message and an RRC connection establishment message to the terminal through the control beam, and allocating time-frequency resources of the service beam required by the RRC connection establishment completion signaling, and preamble and random access time-frequency resources which are exclusive to the service beam and used for non-competitive random access by the network side through DCI signaling.

Optionally, the processor 510 is further configured to:

receiving terminal capability information sent by the terminal;

Optionally, the processor 510 is further configured to:

and receiving the RRC connection request and the terminal capability information sent by the terminal on the time-frequency resource of the control beam.

Optionally, the processor 510 is further configured to:

and under the condition that the terminal fails to switch from the control beam to the service beam, the network side equipment receives the random access initiated by the terminal at the position of the random access resource of the service beam.

Optionally, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

Optionally, the processor 510 is further configured to:

informing the terminal to measure on the designated BWP;

receiving the measurement quantity fed back by the terminal;

and deciding whether to perform BWP handover or cell handover according to the measurement quantity.

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

Optionally, the processor 510 is further configured to:

It should be noted that the network side device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Referring to fig. 6, fig. 6 is a block diagram of a terminal according to an embodiment of the present invention, as shown in fig. 6, including a memory 620, a transceiver 600, and a processor 610:

a memory 620 for storing a computer program; a transceiver 600 for transceiving data under the control of the processor 610; a processor 610 for reading the computer program in the memory 620 and performing the following operations:

switching from the control beam to the traffic beam.

Wherein in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 610, and various circuits, represented by memory 620, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 600 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 610 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

Optionally, the obtaining time-frequency resources of the control beam allocated by the network side device includes:

and receiving a broadcast message sent by the network side equipment, wherein the broadcast message comprises the time-frequency resource of the control beam.

broadcasting satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between the wave bit and the preamble;

wave position dwell time;

the wave number;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time frequency resources of the control beam;

wherein the random access time frequency resource of the control beam comprises:

or

Optionally, the obtaining time-frequency resources of the service beam allocated by the network side device includes:

and receiving a random access response sent by the network side device on the downlink initial BWP of the control beam, where the random access response is used to allocate the time-frequency resource of the service beam.

Optionally, the switching from the control beam to the service beam includes:

sending an RRC connection request to the network side device from the initial BWP switched from the control beam to the service beam; or

the method comprises the steps that a time domain position, an uplink initial BWP (broadband access protocol) of a service beam, a frequency resource distributed in the uplink initial BWP of the service beam, and a preamble and a random access time-frequency resource which are exclusive to the service beam and used for non-competitive random access are obtained, wherein when a terminal recovers from the failure of switching from a control beam to the service beam, the terminal uses the exclusive preamble of the service beam to initiate the non-competitive random access;

alternatively, the first and second liquid crystal display panels may be,

Optionally, the controlling the time-frequency resources of the beam includes:

or

the switching from the control beam to the traffic beam comprises:

Optionally, the time-frequency resource of the service beam includes:

or

Optionally, the processor 610 is further configured to:

sending terminal capability information to the network side equipment;

Optionally, the processor 610 is further configured to:

and sending the RRC connection request and the terminal capability information to the network side equipment on the time-frequency resource of the control wave beam.

Optionally, the processor 610 is further configured to:

under the condition that the terminal fails to switch from the control wave beam to the service wave beam, initiating random access to the network side equipment by using a preamble corresponding to the service wave beam at the position of a random access resource of the service wave beam; or

And under the condition that the terminal fails to switch from the control beam to the service beam, detecting a Synchronization Signal Block (SSB) of the service beam at the position of an SSB synchronization grid, and initiating initial access to the network-side equipment in the service beam based on the synchronization signal block and random access resources, wherein the position of the SSB synchronization grid is configured to the terminal by the network-side equipment.

Optionally, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

Optionally, the processor 610 is further configured to:

receiving a notification sent by the network side device, wherein the notification is used for notifying the terminal to measure on a specified BWP;

and feeding back the measurement quantity measured by the terminal on the specified BWP to the network side equipment.

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Referring to fig. 7, fig. 7 is a structural diagram of another network side device according to an embodiment of the present invention, and as shown in fig. 7, a network side device 700 includes:

a first allocating unit 701, configured to allocate a time-frequency resource of a control beam to a terminal;

a second allocating unit 702, configured to allocate a time-frequency resource of a service beam to the terminal.

Optionally, the first allocating unit 701 is configured to send a broadcast message to the terminal, where the broadcast message includes the time-frequency resource of the control beam.

broadcasting satellite orbit altitude;

the position information of the synchronous signal block SSB synchronous grid of the service wave beam;

mapping relation between the wave bit and the preamble;

wave position dwell time;

the number of wave bits;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time frequency resources of the control beam;

Optionally, the second allocating unit 702 is configured to send a random access response to the terminal on the downlink initial BWP of the control beam, where the random access response is used to allocate the time-frequency resource of the service beam.

alternatively, the first and second liquid crystal display panels may be,

Optionally, the controlling the time-frequency resources of the beam includes:

or alternatively

the second allocating unit 702 is configured to send a contention resolution message and an RRC connection establishment message to the terminal through the control beam, and the network side allocates, through DCI signaling, a time-frequency resource of the service beam required by the RRC connection establishment completion signaling, and a preamble and a random access time-frequency resource dedicated to the service beam and used for non-contention random access.

Optionally, the apparatus further includes: and a receiving unit.

Optionally, the receiving unit is configured to receive terminal capability information sent by the terminal;

Optionally, the receiving unit is configured to receive, on a time-frequency resource of a control beam, an RRC connection request and terminal capability information sent by the terminal.

Optionally, the receiving unit is configured to receive, at a location of a random access resource of the service beam, a non-contention random access initiated by the terminal by the network side device under a condition that the terminal fails to switch from the control beam to the service beam.

Optionally, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

Optionally, the apparatus further comprises:

a first notification unit for notifying the terminal to make a measurement on a specified BWP;

the receiving unit is used for receiving the measurement quantity fed back by the terminal;

a deciding unit, configured to decide whether to perform BWP handover or cell handover according to the measurement quantity.

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

Optionally, the apparatus further includes:

a second notifying unit, configured to, when the beam service of the wave bit where the terminal is located is about to fail, request, by the network-side device, a service beam resource from a target network-side device, and notify, to the terminal, at least one of a downlink initial BWP and an uplink initial BWP of the target network-side device.

It should be noted that, the network side device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

Referring to fig. 8, fig. 8 is a structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 8, a terminal 800 includes:

a first obtaining unit 801, configured to obtain a time-frequency resource of a control beam allocated by a network side device;

a second obtaining unit 802, configured to obtain a time-frequency resource of a service beam allocated by the network side device;

a switching unit 803, configured to switch from the control beam to the service beam.

Optionally, the first obtaining unit 801 is configured to receive a broadcast message sent by the network side device, where the broadcast message includes the time-frequency resource of the control beam.

broadcasting the satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between the wave position and the preamble;

wave position dwell time;

the wave number;

a scan period of the control beam.

Optionally, the time-frequency resource of the control beam includes:

random access time-frequency resources of the control beam;

optionally, the terminal sends a preamble on a random access time-frequency resource;

or

Optionally, the second obtaining unit 802 is configured to receive a random access response sent by the network side device on the downlink initial BWP of the control beam, where the random access response is used to allocate the time-frequency resource of the service beam.

Optionally, the switching unit 803 is configured to send an RRC connection request to the network-side device from the initial BWP of the control beam switching to the service beam; or alternatively

The switching unit 803 is configured to send an RRC connection request to the network-side device from the active BWP for switching the control beam to the service beam.

alternatively, the first and second electrodes may be,

the method comprises the steps of time domain position, uplink activation BWP of a service beam, frequency resources distributed in the uplink activation BWP of the service beam, and dedicated preamble and random access time-frequency resources for non-competitive random access of the service beam, wherein when the terminal recovers from failure switching from a control beam to the service beam, the terminal initiates the non-competitive random access by using the dedicated preamble of the service beam.

Optionally, the controlling the time-frequency resources of the beam includes:

or alternatively

the second obtaining unit 802 is configured to receive a contention resolution message and an RRC connection establishment message sent by the network side device through the control beam, and obtain a time-frequency resource of the service beam required by the network side device through the RRC connection establishment completion signaling allocated by the DCI signaling, and a preamble and a random access time-frequency resource dedicated to the service beam and used for non-contention random access, where, when the terminal is recovered from the control beam to the service beam in a handover failure, the terminal initiates non-contention random access using the preamble dedicated to the service beam;

the switching unit 802 is configured to switch from the control beam to the service beam for RRC connection establishment.

Optionally, the terminal further includes: and a sending unit.

Optionally, the sending unit is configured to send terminal capability information to the network side device;

Optionally, the sending unit is configured to send the RRC connection request and the terminal capability information to the network side device on the time-frequency resource of the control beam.

Optionally, the sending unit is configured to, when the terminal fails to switch from the control beam to the service beam, initiate, by using a preamble dedicated to the service beam, non-contention random access to the network side device at a location of a random access resource of the service beam by the terminal; or

The sending unit is configured to, when the terminal fails to switch from the control beam to the service beam, detect, by the terminal, a synchronization signal block SSB of the service beam at a location of an SSB synchronization grid, and initiate initial access to the network-side device at the service beam based on the synchronization signal block and a random access resource, where the location of the SSB synchronization grid is configured to the terminal by the network-side device.

Optionally, the service beam is configured with at least one of the following:

wherein each BWP is configured with a measurement signal.

Optionally, the terminal further includes:

a measurement unit, configured to receive a notification sent by the network-side device, where the notification is used to notify the terminal to perform measurement on a specified BWP;

the sending unit is configured to feed back, to the network-side device, the measurement amount measured by the terminal on the specified BWP.

Optionally, the measurement signal includes at least one of:

SSBs and channel state information reference signals CSI-RS.

It should be noted that the division of the cells in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware or a form of software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solutions of the present application, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to enable the processor to execute the beam resource allocation method provided in the embodiment of the present invention, or the computer program is configured to enable the processor to execute the beam switching method provided in the embodiment of the present invention.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for allocating beam resources, comprising:

2. The method of claim 1, wherein the network side device allocates time-frequency resources of control beams to a terminal, and the method comprises:

3. The method of claim 2, wherein the broadcast message further comprises at least one of:

broadcasting satellite orbit altitude;

mapping relation between the wave position and the preamble;

wave position dwell time;

the number of wave bits;

a scan period of the control beam.

4. The method of claim 1, wherein the time-frequency resources of the control beam comprise:

random access time-frequency resources of the control beam;

a time-domain position, an uplink initial bandwidth portion BWP of the steered beam, and frequency resources allocated in the uplink initial BWP of the steered beam.

5. The method of claim 1, wherein the allocating, by the network side device, time-frequency resources of a service beam to the terminal comprises:

6. The method of claim 5, wherein the time-frequency resources of the service beam are for an initial BWP for the terminal to switch from the control beam to the service beam; or

7. The method of claim 6, wherein in case that the time-frequency resources of the service beam are used for the initial BWP for the terminal to switch from the control beam to the service beam, the time-frequency resources of the service beam comprise:

the method comprises the steps that time domain positions, uplink initial BWP of service beams, frequency resources distributed in the uplink initial BWP of the service beams, and dedicated preamble and random access time-frequency resources for non-competitive random access of the service beams are obtained;

alternatively, the first and second liquid crystal display panels may be,

the method comprises the steps of time domain position, uplink activation BWP of a service beam, frequency resources distributed in the uplink activation BWP of the service beam, and preamble and random access time-frequency resources which are exclusive to the service beam and used for non-competitive random access.

8. The method of claim 1, wherein the controlling time-frequency resources of the beam comprises:

or

9. The method of any one of claims 1 to 7, further comprising:

10. The method of claim 8, wherein the method further comprises:

11. The method of any of claims 1 to 8, further comprising:

12. The method according to any of claims 1 to 8, wherein the service beam is configured with at least one of:

wherein each BWP is configured with a measurement signal.

13. The method of claim 12, wherein the method further comprises:

and the network side equipment determines whether to perform BWP switching or cell switching according to the measurement quantity.

14. The method of claim 12, wherein the measurement signal comprises at least one of:

SSBs and channel state information reference signals CSI-RS.

15. The method of claim 12, wherein the service beam time-divisionally services a plurality of wave bits, and wherein the uplink active BWP and the downlink active BWP of the service beam are configured at each wave bit based on at least one of:

16. The method of any of claims 1 to 8, further comprising:

when the beam service of the wave bit where the terminal is located is about to fail, the network side device requests a service beam resource from a target network side device, and notifies the terminal of at least one of a downlink initial BWP and an uplink initial BWP of the target network side device.

17. A method of beam switching, comprising:

the terminal switches from the control beam to the traffic beam.

18. The method of claim 17, wherein the acquiring, by the terminal, the time-frequency resource of the control beam allocated by the network side device comprises:

19. The method of claim 18, wherein the broadcast message further comprises at least one of:

broadcasting the satellite orbit altitude;

location information of the SSB synchronization grid of the service beam;

mapping relation between the wave bit and the preamble;

wave position dwell time;

the wave number;

a scan period of the control beam.

20. The method of claim 17, wherein the time-frequency resources of the control beam comprise:

random access time frequency resources of the control beam;

21. The method of claim 20, wherein the terminal sends preamble on random access time-frequency resource;

or

22. The method of claim 17, wherein the acquiring, by the terminal, the time-frequency resource of the service beam allocated by the network side device comprises:

23. The method of claim 22, wherein the terminal switching from the control beam to the traffic beam comprises:

the terminal switches the control beam to the initial BWP of the service beam and sends an RRC connection request to the network side equipment; or alternatively

And the terminal switches the control beam to the active BWP of the service beam and sends an RRC connection request to the network side equipment.

24. The method of claim 23, wherein in case of the terminal switching from the control beam to the initial BWP of the service beam, the time-frequency resources of the service beam comprise:

alternatively, the first and second liquid crystal display panels may be,

the method comprises the steps of time domain position, uplink activation BWP of service beams, frequency resources distributed in the uplink activation BWP of the service beams, and dedicated preamble and random access time-frequency resources for non-competitive random access of the service beams, wherein when the terminal is recovered from failure of switching from control beams to the service beams, the terminal uses the dedicated preamble of the service beams to initiate the non-competitive random access.

25. The method of claim 17, wherein the controlling the time-frequency resources of the beam comprises:

or

the terminal receives a contention resolution message and an RRC connection establishment message sent by the network side equipment through the control beam, acquires a time-frequency resource of the service beam required by the RRC connection establishment completion signaling distributed by the network side equipment through DCI signaling, and a preamble and a random access time-frequency resource which are exclusive to the service beam and used for non-contention random access, wherein when the terminal fails to recover from switching from the control beam to the service beam, the terminal uses the preamble exclusive to the service beam to initiate non-contention random access;

the terminal switching from the control beam to the service beam comprises:

26. The method of any one of claims 17 to 24, further comprising:

27. The method of claim 25, wherein the method further comprises:

28. The method of any one of claims 17 to 25, further comprising:

And under the condition that the terminal fails to switch from the control beam to the service beam, the terminal detects a Synchronization Signal Block (SSB) of the service beam at the position of an SSB synchronization grid, and initiates initial access to the network side equipment at the service beam based on the synchronization signal block and random access resources, wherein the position of the SSB synchronization grid is configured to the terminal by the network side equipment.

29. The method according to any of claims 17 to 25, wherein the service beam is configured with at least one of:

wherein each BWP is configured with a measurement signal.

30. The method of claim 29, wherein the method further comprises:

and the terminal feeds back the measurement quantity measured by the terminal on the specified BWP to the network side equipment.

31. The method of claim 29, wherein the measurement signal comprises at least one of:

SSBs and channel state information reference signals CSI-RS.

32. A network-side device, comprising: a memory, a transceiver, and a processor, wherein:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

allocating time-frequency resources of control beams to the terminal;

and allocating time-frequency resources of service beams to the terminal.

33. The apparatus of claim 32, wherein the allocating time-frequency resources for traffic beams to the terminal comprises:

34. The apparatus of claim 33, wherein the time-frequency resources of the service beam are for an initial BWP for the terminal to switch from the control beam to the service beam; or

35. The apparatus of claim 32, wherein the time-frequency resources of the control beam comprise:

or

and sending a competition solution message and an RRC connection establishment message to the terminal through the control beam, and allocating the time frequency resource of the service beam required by the RRC connection establishment completion signaling, and the preamble and the random access time frequency resource which are exclusive for the service beam and are used for non-competitive random access by the network side through DCI signaling.

36. A terminal, comprising: a memory, a transceiver, and a processor, wherein:

switching from the control beam to the traffic beam.

37. The terminal of claim 36, wherein the obtaining the time-frequency resource of the service beam allocated by the network side device comprises:

38. The terminal of claim 37, wherein said switching from said control beam to said service beam comprises:

sending an RRC connection request to the network-side device from the initial BWP for switching the control beam to the service beam; or

And the active BWP switched from the control beam to the service beam sends an RRC connection request to the network side equipment.

39. The terminal of claim 36, wherein the time-frequency resources of the control beam comprise:

or alternatively

receiving a contention resolution message and an RRC connection establishment message sent by the network side equipment through the control beam, and acquiring a time frequency resource of the service beam required by the RRC connection establishment completion signaling distributed by the network side equipment through DCI signaling, and a preamble and a random access time frequency resource which are exclusive to the service beam and used for non-contention random access, wherein when the terminal fails to recover from switching from the control beam to the service beam, the terminal initiates the non-contention random access by using the preamble exclusive to the service beam;

the switching from the control beam to the traffic beam comprises:

40. A network-side device, comprising:

and the second allocating unit is used for allocating time-frequency resources of the service beams to the terminal.

41. A terminal, comprising:

a switching unit for switching from the control beam to the service beam.

42. A processor-readable storage medium, characterized in that it stores a computer program for causing the processor to execute the beam resource allocation method of any one of claims 1 to 17 or the beam switching method of any one of claims 18 to 33.